I believe there's death by different kinds of murder, including suicide, by accidents of all kinds, by acts of God or fate, by acts of war, by execution, and by acts of self-defense. I personally have no problem with someone killing - by definition not murdering - someone in self-defense. I believe in mercy, and I also believe in reasonable boundaries set by a merciful society. I categorize a person's death by an act of self-defense a kind of suicide, since behavior which demands it be stopped with lethal force is given many opportunities for repentance of which the victim finally refuses to take advantage.